A secretive maid who first appears in episode 8, she is given special glasses from Letuchie to spy on the other G Society ES Members and give the information to Geacht'er. Core is somewhat similar to Bonita a receptionist from the previous series, Bonita was found out from the material collection to be an S Class ES Member with ability name Sacrifice, Core and Bonita also have the same voice actress which raises more supicion.
